230 Scientific Intelligence. 
and nut groves. Fortunately no lives were lost or villages 
the undermining of the soil owing to the recent eruptions.” 
c. G. RB, 
4, Former extension northward of the South American Conti- 
nent.—The following paragraphs close a paper by A. AGassiZ, 
: ; : S 
from A. Agassiz to C. P. Patterson, Sup’t Coast Suryey. (Bull. 
Mus. Comp. Zool., Cambridge, Mass., vol. v, No. 14, June, nes 
instructive. : 
One of the most interesting results reached by this year’s cruise 
is the light thrown upon the er extension of the South Amer- 
America ; the Caribbean Islands show in part the same relation- 
ship, though the affinity to the Venezuelan and Brazilian fauna 
ora is much more ma 
Tn attempting to reconstruct, from the soundings, the state of 
things existing in a former period, we are at once struck by the 
the whole of Porto Rico, and extend some way into the Mon 
Passage. The 100-fathom line similarly forms a large plateau, 
uniting Anguilla, St. Martin and St. olomew. It also unites 
Barbuda and An , forms the Saba Bank, unites St. Eustatius, 
St. Christopher, Nevis and Redonda. It forms an elongated pla- 
teau, extending from Bequia to the southwest of Grenada, and 
Tuns more or less parallel to the South American coast from the 
Margarita dslands, leaving a comparatively narrow channel 
between it and the 100-fathom line south of Grenada, so 28 t° 
A Trinidad and Tobago with in i limits 7 and runs oft to the 
